Functions and Scope

Which keyword defines a function?

What is a lambda function?

Which is a valid default argument?

What does *args represent?

What does **kwargs represent?

What is the scope of a variable inside a function?

How to access global variable inside function?

What is a recursive function?

What is returned if function has no return?

Which decorator is used for memoization?

Explain the difference between parameters and arguments with examples.

What are *args and **kwargs? When are they useful?

Explain LEGB rule for variable scope in Python.

What is the difference between global and nonlocal keywords?

Explain first-class functions in Python with examples.

What is a closure? When does Python create a closure?

Explain function decorators with a practical example.

What are pure functions? Why are they important?

Explain type hints and function annotations in Python.

What is recursion depth limit? How to handle it?

Write a recursive function to calculate factorial with memoization.

Create a decorator that logs function execution time.

Write a function that accepts any number of arguments and returns their product.

Create a closure that generates unique incrementing IDs.

Write a higher-order function that takes a function and applies it twice.

Create a function with default mutable argument fix.

Predict output: def f(): x = 10 f() print(x)

Find error: def greet(name, greeting='Hello'): print(greeting, name) greet(greeting='Hi', 'John')

Predict output: x = 5 def func(): global x x = 10 func() print(x)

Find error: def outer(): x = 5 def inner(): x += 1 inner() outer()

Predict output: def f(a, L=[]): L.append(a) return L print(f(1)) print(f(2))

Find error: lambda x: x + 1 print(result(5))

Predict output: def func(*args, **kwargs): print(args) print(kwargs) func(1, 2, a=3, b=4)

Find error: def add(a, b): return a + b print(add(1, 2, 3))